package com.atguigu.gulimall.product.config;

import com.alibaba.fastjson.support.spring.GenericFastJsonRedisSerializer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.cache.CacheProperties;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheConfiguration;
import org.springframework.data.redis.serializer.RedisSerializationContext;
import org.springframework.data.redis.serializer.StringRedisSerializer;

@EnableConfigurationProperties(CacheProperties.class)
@Configuration
@EnableCaching
public class MyCacheConfig {

    /**
     * 配置文件中的东西没有用上：
     * 1.原来和配置文件绑定的配置是这样的
     *  @ConfigurationProperties(prefix = "spring.cache")
     *  public class CacheProperties
     * 2.要让它生效 @EnableConfigurationProperties
     * @return
     */
    @Bean
    RedisCacheConfiguration redisCacheConfiguration(CacheProperties cacheProperties)  {
        RedisCacheConfiguration config = RedisCacheConfiguration.defaultCacheConfig();
        config = config.serializeKeysWith(RedisSerializationContext.SerializationPair.fromSerializer(new StringRedisSerializer()));
        config = config.serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(new GenericFastJsonRedisSerializer()));
        // 将配置文件中的所有配置都生效
        CacheProperties.Redis redis = cacheProperties.getRedis();
        if (redis.getTimeToLive()!=null) {
            config = config.entryTtl(redis.getTimeToLive());
        }
        if (redis.getKeyPrefix()!=null){
            config = config.prefixKeysWith(redis.getKeyPrefix());
        }
        if (!redis.isCacheNullValues()) {
            config = config.disableCachingNullValues();
        }
        if (!redis.isUseKeyPrefix()) {
            config = config.disableKeyPrefix();
        }
        return config;
    }
}
